... energy saving,high efficacy 2,anti-glare,high CRI 3.shock and vibration proof 4.Osram led source 5.safety design Features and benefits1.Energy ... the user may have direct visual contact with the l ight source.3.Shock- and vibration-resistant- tempered glass , reduces ... mines Coal mine tunnel, working face and other tunnels as fixed lighting. Ideal for explosive environment with methane and coal dust.